from random import randint, randrange


strShuzhu = {}
i = int(input('请输入开始的数字：'))
s = int(input('请输入结束的数字：'))
aq = s
num = 0
while aq:
    strShuzhu[str(i)] = s
    aq -= 1
    num += 1
    a = randrange(i, s)
    b = randint(i, s)
    print('第{0}次 ：a 随机数为：{1}\t b的随机数为：{2}'.format(num, a, b))
    if a == b:
        print(str(a)+'\t'+str(b))

for key, value in strShuzhu.items():
    print('%s %s  C'.center(20, '-') % (key, value))
